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Andreas Persson

Universitetslektor

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Evaluation of a new X-band weather radar for operational use in south Sweden

Författare

  • Hasan Hosseini
  • Hossein Hashemi
  • Ronny Berndtsson
  • Nicholas South
  • Henrik Aspegren
  • Rolf Larsson
  • Jonas Olsson
  • Andreas Persson
  • Lisa Olsson

Summary, in English

The performance of a new type of X-band Weather Radar (WR) for Sweden during a pilot run is studied. Compared to the conventional C-band WRs, the X-band WR covers a smaller area but with a higher spatiotemporal resolution, making it suitable for urban hydrological applications. Rainfall estimations from different elevation angles of the radar (levels) are compared at one-minute and single-event timescales with the observations of several rain gauges at different ranges using hyetographs. In general, the estimations aligned well with observations and the best match appeared for ranges as long as 5–10 km. Seemingly, radar estimations suffered from overshooting of lower lying showers by higher level scans in longer ranges (19–30 km) and from the reflectivity contamination due to moving objects in short ranges (<1 km). Also, the effective range of the radar dropped sharply for the moments when a cloudburst was located over the radar. Although various sources of error could affect the X-band WR rainfall estimates, higher resolution spatiotemporal rainfall monitoring for wider areas will benefit from an integration of data from a network of X-band WRs.

Avdelning/ar

  • Avdelningen för Teknisk vattenresurslära
  • Centrum för Mellanösternstudier
  • MECW: The Middle East in the Contemporary World
  • Institutionen för kemiteknik
  • Centrum för geografiska informationssystem (GIS-centrum)
  • Institutionen för naturgeografi och ekosystemvetenskap

Publiceringsår

2020-02-18

Språk

Engelska

Sidor

1623-1635

Publikation/Tidskrift/Serie

Water Science and Technology

Volym

81

Issue

8

Dokumenttyp

Artikel i tidskrift

Förlag

IWA Publishing

Ämne

  • Remote Sensing

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0273-1223